Which of the following statements represents the function the nozzle assembly performs in an impulse turbine? |
A) Provides an area where the steam is prevented from expanding prior to being directed against the rotor blades. |
B) Converts the steam's thermal energy into kinetic energy by increasing its velocity and directing it against the rotor blades. |
C) Converts the potential energy of steam into thermal energy by increasing its pressure and directing it against the turbine blades. |
D) Increases the velocity of the steam without a pressure drop across the diaphragm. |